Don’t you just hate it when students forget basic key skills? Especially those at the higher end of Year 11 or studying A-Level, who should have a better core knowledge. What if there was a magic tool which began to address this issue?
- Comparing fractions
- Trigonometric ratios
- Simplifying surds
- Rationalising surds
You will not need:
- One board, with pen
Quite simply draw the four diagrams below on the board and ask the following questions:
- Which has the largest sine ratio: A or B?
- Which has the largest cosine ratio: C or D?
- Which has the smallest tangent ratio: A, B, C or D?
- Extension: Calculate the missing angles and areas (Calculator allowed)
It takes moments to draw the questions on the board, but the discussion can take some time and addresses several basic skills. You can change the numbers to adjust the level of challenge.